package lab02.Test37;

/**
 * Created by tanfei on 2017/11/22.
 */
public abstract class Student {
    //特征：学号、姓名、年龄、学历
    String number;
    String name;
    int age;
    String type;
    double[] scores=new double[3];
    String status;
    double calAverage() {return (scores[0]+scores[1]+scores[2])/3;}
    abstract String calgrade() ;
}
